Argus Ball Valve EK, FK and HK Operating Manual – BA1000 EN
8 Troubleshooting Guide
Page 47 of 67
2. Remove the stuffing box in order to replace the sealing material.
3. Carefully remove the seals using a suitable tool.
4. Replace the seals that have been removed using a new sealing material.
5. Place the stuffing box onto the stem extension again.
6. Tighten the nuts evenly.
Observe the maximum torque values for tightening the stuffing box recommended in
Annex D: Max. Permissible Screw Tightening Torques for Stuffing Box.
Replacement of the seals is now complete.
8.5 Draining the Argus Ball Valve with the Drain Plug (if present)
The drain plug on the bottom of the Argus Ball Valve housing, as an optional feature, serves
to drain off any fluid residues from the ball valve interior.
Note that the operation and use of the drain plug may vary depending on the type
and manufacturer. Therefore the following instructions are intended to illustrate the
use only as an example. Information on the exact operation and use of the drain
plug can be found in the manufacturer's documentation.
Draining Fluid Residues
Risk of injury due to trapped pressure!
A pressurized Argus Ball Valve may cause severe injury or death.
Before removing and/or loosening the drain plug, operate the valve several times so
that the trapped pressure can escape.
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